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ST-Link/V2 JTAG/SWD接口是如何定义的？
下面为ST-Link/V2 JTAG/SWD接口定义：
| 仿真器端口 |
连接目标板 |
功能 |
| 1. TVCC |
MCU电源VCC |
连接STM32目标板的电源VCC |
| 2. TVCC |
MCU电源VCC |
连接STM32目标板的电源VCC |
| 3. TRST |
GND |
GROUND |
| 4. UART-RX |
GND |
GROUND |
| 5. TDI |
TDI |
连接STM32的JTAG TDI |
| 6. UART-TX |
GND |
GROUND |
| 7. TMS, SWIO |
TMS, SWIO |
连接STM32的JTAG的TMS, SWD的SW IO |
| 8. BOOT0 |
GND |
GROUND |
| 9. TCK, SWCLK |
TCK, SWCLK |
连接STM32的JTAG的TCK, SWD的SW CLK |
| 10. SWIM |
GND |
GROUND |
| 11. NC |
NC |
Unused |
| 12. GND |
GND |
GROUND |
| 13. TDO |
TDO |
连接STM32的JTAG TDO |
| 14. SWIM-RST |
GND |
GROUND |
| 15. STM32-RESET |
RESET |
连接STM32目标板的RESET端口 |
| 16. KEY |
NC |
GROUND |
| 17. NC |
NC |
Unused |
| 18. GND |
GND |
GROUND |
| 19. VDD |
NC |
VDD (3.3V) |
| 20. GND |
GND |
GROUND |
下面是ST-Link/V2 JTAG/SWD标准的接口排列：
ST-Link/V2 JTAG/SWD指定的标准接口 |